Known Exploited Vulnerability

CVE-2017-0037

Microsoft Edge and Internet Explorer Type Confusion Vulnerability

Past federal due date 17 public exploits Added 28 Mar 2022 Due 18 Apr 2022 · 1572 days ago
VendorMicrosoft
ProductEdge and Internet Explorer
WeaknessCWE-704
RansomwareNone confirmed

What the flaw is

Microsoft Edge and Internet Explorer have a type confusion vulnerability in mshtml.dll, which allows remote code execution.

Description as published by CISA. We have not independently reproduced it.

What CISA requires

Apply updates per vendor instructions.

This deadline is binding on US federal civilian agencies under BOD 22-01. It is not a legal deadline for anyone else, but it is a useful urgency signal — CISA sets it by how actively the flaw is being used, not by CVSS.

Public exploit code

17 public repositories referencing this CVE have been catalogued on GitHub. Treat this as a strong signal to prioritise patching, not as a verified working exploit — many such repositories are scanners, write-ups or forks rather than functional code.

Showing 8 of 17. Full list in the trickest/cve dataset.

Vendor advisories

Primary sources

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Source: CISA KEV catalog · last verified August 6, 2026. Rebuilt automatically twice a day.